重复热应激致公兔性腺氧化损伤的研究

为探讨热应激对雄性兔性腺的氧化损伤机制,以体重相近的110日龄雄性新西兰兔为研究对象,每天在固定时间分别以31～34℃和38～40℃进行热应激,并分别在热应激后的第15、30、45及60天处死兔,取样检测性腺组织内总抗氧化酶活性、丙二醛及蛋白质羰基含量。结果显示,随着温度升高,睾丸和附睾组织丙二醛含量增加,总抗氧化酶活性降低,蛋白质羰基含量呈上升趋势,表现出明显的温度-时间效应。表明高热可改变兔睾丸和附睾的正常生理机能,使自由基在组织内累积,引起蛋白质氧化损伤,进而降低繁殖机能。     

Violence,Guns, and Suicide in New Orleans: Results from a Qualitative Study of Recent Suicide Decedents

Many Americans own guns to protect themselves against other people, but there is evidence that both victimization and gun access increase suicide risk. We conducted qualitative interviews with informants of 17 suicide cases in New Orleans of the 60 who died between January 2015 and April 2016 to understand the relationship between past trauma, gun access and storage, and suicide. Nine cases had experienced a past trauma, including three who had recently had a family member killed by homicide. Eight died via firearm; of those, seven owned the guns they used to take their lives and stored them locked (but loaded) at home or in their cars. Preventing community violence and addressing its sequelae may be important for reducing suicides. A multi‐pronged strategy consisting of policies, education, and marketing will likely be needed to address the risk of suicide conferred by gun access.     

Witnessing an Accidental Shooting at the Police Training Academy

Abstract

After an accidental shooting at a police training academy, outcomes of the class involved (n = 45) were compared with those of several comparison classes (n = 154) immediately and one year later. Results revealed a modest impact, but an increase in PTSD symptomology was observed from academy training to the one-year follow-up. Recruits in the affected class demonstrated more prejudicial attitudes toward women in law enforcement, perhaps because the shooter was a woman. The findings suggest that mistakes made by women within law enforcement may be generalized as stereotypes, and that further research is needed on the psychological impact of becoming a police officer.     

Posttraumatic stress disorder symptom severity and fear of personal crime: exploring their interrelationship as a function of risk estimation

Both trauma psychology and criminology have studied the psychological correlates of crime victimization. While the former discipline has primarily focused on the development of posttraumatic stress disorder (PTSD) among crime victims, the latter has particularly studied the association between history of victimization and fear of crime. A major difference between both concepts is that PTSD is experienced in relation to previous victimization, while fear of crime does not necessarily follow from previous victimization and is primarily experienced in anticipation of possible future victimization. Despite their different orientations, both perspectives share one central tenet: they both argue that feelings of anxiety are accompanied by increased perceptions of risk for future victimization. Given this theoretical overlap, both types of anxiety may correlate with each other. The current study explored this topic in a sample of Dutch university students (N = 375) and found that PTSD symptom severity and fear of crime were significantly associated with each other, both in univariate and multivariate analyses. This association was stronger for participants who scored higher on perceived risk of personal crime victimization than for those who scored lower. Results were discussed in light of study limitations and directions for future research.     

Leave it at the gate: job stress and satisfaction in correctional staff

Though academic literature firmly establishes an inverse relationship between job stress and job satisfaction, global correctional studies fail to examine the extent of that affiliation on overall correctional job satisfaction. As such, this study uses a faceted approach to explore underlying relationships between organizational, job, and personal characteristics of correctional staff and causes of job stress and satisfaction. Using the Job Satisfaction Survey, nine aspects of job satisfaction are considered. The Work Stress Scale for Correctional Officers’ analyses of five areas of stress directly related to correctional environments. This study examines both uniform and nonuniform staff assigned to a minimum security prison. On average, staff scored well below the average American worker on the Job Satisfaction Survey. Job satisfaction was predicted exclusively by job characteristics or stressors, including the job itself, role conflict, and ambiguity, and the physical condition of the prison, while employee demographic variables and variables that measure healthy lifestyles (such as sleep and exercise) were not significant predictors. While job stress does predict a substantively significant portion of job satisfaction (21%), there is still room to improve prediction.     

Comment on Dennis P. Culhane et al.’s “Testing a typology of family homelessness based on patterns of public shelter utilization in four U.S. jurisdictions: Implications for policy and program planning”

Abstract

A comprehensive typology of homeless families would help us understand how to provide services and supports appropriate to particular subgroups. In their attempt to establish such a typology, Culhane and his colleagues employ administrative data sets to correlate shelter use with behavioral indicators. These data sets are limited in that they fail to incorporate the complex, intense, and sometimes traumatic experiences that characterize the lives of homeless families, causing this study to fall short of what is required to create an accurate typology.

Among the areas overlooked by this approach are the high levels of traumatic stress and violence in the lives of homeless families, children's needs, and the interactions between parents and children. When only limited research is available, there is a danger that even modest findings will be used to support broad policy directions. Further research is needed to arrive at a defensible typology.     

高校高学历女教师角色压力及疏解

作为“传统的现代女人”,高校高学历女教师有着强烈的自我发展需求、主体意识和成就动机,但在沉重的学术压力面前她们更容易出现职业倦怠;作为“现代的传统女人”,未婚的高学历女教师往往面临“结构性剩余”的境地,已婚的高学历女教师则在事业与家庭之间做着“鱼与熊掌”的艰难选择。多种角色压力归根到底是由于传统社会期待与现代价值追求的冲突,疏解这些压力要全社会共同努力,推进社会性别文化的良性发展,高学历女教师也要对自我作理性认知,提高对不同角色的适应能力。     

Creating a safer working environment through psychological assessment: A review of a measure of safety consciousness

This article explores how organizations can prevent workplace accidents through the psychological assessment of employees. We present a model of employee safety consciousness consisting of personality and attitudinal variables associated with a higher risk of accident involvement. A safety conscious employee is described as one who: has an internal locus of control in matters related to workplace safety, has a high tolerance for work‐related stress, and avoids engaging in high‐risk, sensation‐seeking activities. Relevant research is reviewed and applications of the safety consciousness construct to hiring, promotion and training are discussed.     

Does terrorism create terror?

The conceptual and etymological meaning of the terms ‘terror’ and ‘terrorism’ is so closely connected that it seems difficult to distinguish the one from the other. However, by comparing the idea that terrorism inevitably creates terror with the results of recent empirical studies of the psychological effects of terrorist attacks, four different points of view emerge corresponding to four distinct interpretations of the results. It is thus clearly necessary to redefine the terminology relating to terrorism, in order to conduct the discussion on a more rigorous basis.